Forex trader, new to U.S., looking to trade ES, Comod,etc...

Hello guys, I'm a forex trader and looking to start trading the spooz, various commodities, Bund, and equities and I'm looking for one broker to accommodate all of this. I am sure my options are limited.

Also how granular are the lot/position sizes for these markets in the USA....ie oil, gold, silver, Nat gas, snp mini etc etc.

I believe Interactive Brokers offer most of this but commissions seem a bit steep and I think you have to purchase a subscription to each different market. Not positive about this.

Any information you can provide would be greatly appreciated. Also I am unsure of the Day Trading rule of and acct min of 25k for more than 4 round trips per week....does this apply only to equities or for all markets?